According to Crypto Rover, $8 billion worth of Bitcoin (BTC) and Ethereum (ETH) options are set to expire today, a development expected to trigger significant price volatility in both assets (source: Crypto Rover on Twitter, April 25, 2025). Traders should anticipate increased market swings as large options expiries often lead to sharp price movements and liquidity shifts. Monitoring support and resistance zones in BTC and ETH is crucial, as high open interest and imminent expiry can amplify both upward and downward moves (source: Deribit, CME Group historical data).